A few days ago
Math questions…?
I have 2 math problems, that I have gotten incorrect(or missed a step somewhere) and I hope someone can help. Please show the steps if you know how to do it, thanks!
Factor 2x^3-6x
(2x^3 is 2x cubed, i am using the^ to indicate powers)
and the second is.
Solve the equation (2x-1)^2=18
Thanks!
Top 2 Answers
A few days ago
Favorite Answer
1.
2x(x^2-3)
2.
x=(((square root of 18)+1)/2)
(im not 100% sure about the second one)
0
A few days ago
1: 2x^3-6x=2x(x^2-3)
2: (2x-1)^2=18
2x-1=rt(18)=3rt(2)
2x=1+3rt(2)
x=(1+3rt(2))/2
Note, the 3rt(2) is strictly speaking plus or minus, so dont forget it!!
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